# Q. In the expression 5 * 4 * 3 * 2 * 1, * is chosen from +, -, * each at most two times. Which is the smallest non-negative value of the expression?

a) 3

b) 2

c) 1

d) 0

Correct answer: d) 0

#### Question from UPSC Prelims 2024 CSAT

**Explanation : **

## Smallest non-negative value of the expression

5 – 4 – 3 + 2 × 1 = 0